Hi Firstly, I strongly recommend you update your copy of Firefox for Android to make sure that you have the most recent security and stability fixes as well as new features. You can more about how to update [https://support.mozilla.org/en-US/kb/update-latest-version-firefox-android here]. The best way for you to move your bookmarks across from Firefox on your desktop is to use Firefox Sync. You can read more about how to do this [https://support.mozilla.org/en-US/kb/sync-bookmarks-tabs-history-and-passwords-android here]. Sync will not move across add-ons from Firefox Desktop to Firefox for Android, but there may be equivalent add-ons you can use when you search for add-ons from your mobile device. I hope this helps, but if not, please come back here and we can look into a different solution for you.

The author of https://addons.mozilla.org/firefox/addon/fvd-synchronizer/ only made it for desktop Firefox and not also Android Firefox.